While Anthony remained adamant about not knowing what happened to Caylee, she says she wishes that she had answers "every single day."

"It's not even that it's something that's outside of me that if I knew at this point — if I knew what actually happened, I'd be able to fill in those blanks," Anthony, now 30, asserted. "I've done enough research, I've done enough psychology seminars, I've been tested, I've gone to the psychological evaluations, talked about this to the point where I've been in a puddle and not able to talk about it for days afterwards."

In 2011, a Florida jury found Anthony not guilty of murder, aggravated manslaughter of a child and aggravated child abuse in the case of Caylee's death. Though Anthony was also convicted on multiple counts of lying to police, the charges were eventually overturned. Today, Anthony lives with former private investigator Patrick McKenna, who was the lead investigator in her case.

Despite going into virtual obscurity since the trial, Anthony's slain daughter remains a "central part" of her world.

"She is still the central part of my life," Anthony said. "The central part of my being, always will be."